What Is Z39.50?
 
 
Z39.50:
- A protocol which specifies data structures and interchange rules that allow a client machine to search databases on a server machine and retrieve records that are identified as a result of the search 
 - Maintained by Library of Congress
 - Developed by ZIG
 
Why is it important?
- Powerful searching
 - Local, familiar interface
 - Retrieves structured data